Table 4.
Number of joint detections by Rubin operating in synergy with ET triangular shape operating as a single observatory, and as part of a global network of GW detectors (indicated in the second column from the left).
| APR4 | BLh | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ω90 | Transient | Uniform | Gaussian | Uniform | Gaussian | ||||||
| [deg2] | Followed | Detected | Followed | Detected | Followed | Detected | Followed | Detected | |||
| 1ep/2ep | 1ep/2ep | 1ep/2ep | 1ep/2ep | ||||||||
| α = 0.5 | ET-Δ | 100 | KN | 168 (2.1%) | 72/47 | 144 (1.8%) | 76/57 | 172 (2.2%) | 64/49 | 144 (1.9%) | 100/79 |
| KN+GRB | 82/59 | 86/70 | 77/62 | 108/91 | |||||||
| ET-Δ + LVKI |
20 | KN | 1043 (3.5%) | 383/228 | 655 (2.2%) | 326/204 | 956 (3.2%) | 313/188 | 646 (2.2%) | 444/296 | |
| KN+GRB | 447/279 | 366/246 | 378/237 | 469/337 | |||||||
| ET-Δ + 1CE |
10 | KN | 2097 (4.4%) | 546/285 | 1242 (2.6%) | 470/252 | 1930 (4.0%) | 445/241 | 1227 (2.6%) | 673/380 | |
| KN+GRB | 680/381 | 552/327 | 579/328 | 747/456 | |||||||
| ET-Δ + 2CE |
5 | KN | 13435 (26.6%) | 978/442 | 10033 (19.9%) | 900/387 | 12701 (25.2%) | 812/368 | 9671 (19.2%) | 1408/613 | |
| KN+GRB | 1358/628 | 1238/564 | 1186/541 | 1744/799 | |||||||
| α = 1.0 | ET-Δ | 100 | KN | 846 (10.2%) | 346/251 | 695 (8.4%) | 392/277 | 825 (10.0%) | 337/246 | 695 (8.4%) | 475/381 |
| KN+GRB | 383/282 | 416/301 | 379/273 | 497/403 | |||||||
| ET-Δ + LVKI |
20 | KN | 5231 (17.4%) | 1896/1148 | 3287 (10.9%) | 1740/1132 | 4825 (16.0%) | 1566/971 | 3224 (10.7%) | 2248/1545 | |
| KN+GRB | 2108/1306 | 1859/1229 | 1787/1127 | 2335/1646 | |||||||
| ET-Δ + 1CE |
10 | KN | 10188 (21.4%) | 2772/1533 | 6072 (12.7%) | 2505/1436 | 9320 (19.5%) | 2269/1263 | 6002 (12.6%) | 3496/2023 | |
| KN+GRB | 3201/1806 | 2793/1654 | 2702/1538 | 3726/2255 | |||||||
| ET-Δ + 2CE |
5 | KN | 67949 (134.8%) | 5102/2276 | 50440 (100%) | 4666/2147 | 64113 (127.2%) | 4290/1911 | 48557 (96.3%) | 7301/3276 | |
| KN+GRB | 6356/2827 | 5828/2680 | 5548/2473 | 8423/3857 | |||||||
Notes. The table reports the numbers of GW events detected with a sky localisation smaller than the threshold, Ω90, and within Rubin's footprint. These events are the ones followed up by Rubin and indicated as followed in Columns 5, 7, 9 and 11. The percentage of Rubin's observational time required to follow up all of them is given in parentheses. The corresponding numbers of KN and KN+GRB detections are given in Columns 6, 8, 10, and 12 and indicated with detected both for the 1ep and 2ep detection strategies. The table lists the results for the APR4 and BLh EOSs, the uniform and Gaussian NS mass distributions both for the fiducial (α = 1.0) and pessimistic (α = 0.5) populations. All listed numbers refer to 10 years of observations and include the duty cycle for the GW detectors and Rubin as described in the text.
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